I don't see that chip. Can you identify it in this photo? http://upload.wikimedia.org/wikipedia/commons/8/86/C64motherboard.jpg -----Original Message----- From: email@example.com [mailto:firstname.lastname@example.org] On Behalf Of Gerrit Heitsch Sent: Sunday, January 29, 2012 8:56 AM To: email@example.com Subject: Re: Random Characters On 01/29/2012 02:29 PM, Ed Johnson wrote: > I have a C64 that displays random characters on the screen and locks > up when powered on. Sometimes it powers on correctly but within > seconds displays random characters and locks up. I bought it off eBay > and it worked fine for about a week of heavy use but then this problem started. The usual suspects in this case are the PLA (906114-01), the 74LS258, the CIA that supplies the 2 extra address bits for the VIC and maybe the RAM. Also, if any of the chips I mentioned are in sockets, see if removing them and putting them back in helps. Gerrit Message was sent through the cbm-hackers mailing list Message was sent through the cbm-hackers mailing listReceived on 2012-01-29 16:00:03
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